Mounting
Leuze electronic
MLD 300, MLD 500
30
6
Mounting
6.1
Arrangement of transmitter and receiver
Optical protective devices can only perform their protective function if they are mounted with adequate
safety distance. When mounting, all delay times must be taken into account, e.g. the response times of
the safety sensor and control elements as well as the stopping time of the machine.
The following standards specify calculation formulas:
• EN 13855, "The positioning of protective devices in respect of approach speeds of parts of the
human body": mounting situation and safety distances
• prEN IEC 61496-2, "Active Optoelectronic Protective Devices": distance of the reflecting surfaces/
Deflecting Mirrors
6.1.1 Arrangement of 1-beam safety sensors
6.1.2 Beam heights and ranges
Table 6.1:
Beam heights and ranges of the device versions
WARNING
Improper mounting may result in serious injury!
The protective function of the safety sensor is only ensured if appropriately and professionally mounted
for the respective, intended area of application.
Only allow competent persons to install the safety sensor.
Maintain the necessary safety distances see chapter 6.1.3 „Calculating the safety distance“.
Observe the relevant standards, regulations and these instructions.
Clean the transmitter and receiver at regular intervals: environmental conditions see chapter 14
„Technical data“, care see chapter 10 „Maintenance“.
After mounting, check the safety sensor for proper function.
When safeguarding with 1-beam safety sensors, make certain that the light beams are aligned
parallel to the reference plane, e.g. to the floor. For multi-axis safeguarding with 1-beam safety
sensors, the opposite beam direction is to be selected for adjacent sensors because the light
beams in the individual axes otherwise mutually interfere with one another, thereby affecting the
safe function of the protective device.
Figure 6.1: Multi-axis arrangement with geometric offset
b
a
a
b
Beams / beam dis
-
tance [mm]
Recommendation of
beam heights in ac
-
cordance with
EN ISO 13855 [mm]
Transmitter/receiver range [m]
Transceiver
range [m]
1 / -
-
0.5 to 70 / 20 to 100
-
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